fix: create deep copy of file passed into tree

Ben Schlegel

2023-09-16 fea352849c6972da4b3b8935eb2e86f6cefc76ed

 quartz/cfg.ts

@@ -12,6 +12,10 @@
      provider: "google"
      tagId: string
    }
  | {
      provider: "umami"
      websiteId: string
    }

export interface GlobalConfiguration {
  pageTitle: string